2008 Saturn vue XR key fob and door unlock button will not unlock all the doors. Is there a fuse that needs replaced?

LOCK/MIRROR 10 A fuse--Located in the I/P fuse block, supplies power for the door lock switches and relays.

• DR LCK 20 A fuse--Located in the I/P fuse block, supplies power to the relays. LOCK/MIRROR 10 A fuse--Located in the I/P fuse block, supplies power for the door lock switches and relays. • DR LCK 20 A fuse--Located in the I/P fuse block, supplies power to the relays.

Door Lock and Unlock Operation
When a door lock switch is activated in the lock or unlock position the body control module (BCM) will receive a voltage signal on either the door lock switch lock or unlock signal circuits.

The BCM, upon receipt of a lock switch lock or unlock signal, will switch the appropriate lock relay control circuit(s) to battery positive voltage. This will energize the appropriate lock or unlock relay(s). The relay will supply voltage to the door lock actuator lock or unlock control circuits to one side of the lock actuator. Since the opposing side of the lock actuators are connected to ground through the other lock actuator control circuit and the normally closed contacts of the lock or unlock relay, the doors and liftgate will then lock or unlock appropriately.

Three relays are used to operate the lock. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked by itself using the keyless entry transmitter. Door Lock and Unlock Operation When a door lock switch is activated in the lock or unlock position the body control module (BCM) will receive a voltage signal on either the door lock switch lock or unlock signal circuits. The BCM, upon receipt of a lock switch lock or unlock signal, will switch the appropriate lock relay control circuit(s) to battery positive voltage. This will energize the appropriate lock or unlock relay(s). The relay will supply voltage to the door lock actuator lock or unlock control circuits to one side of the lock actuator. Since the opposing side of the lock actuators are connected to ground through the other lock actuator control circuit and the normally closed contacts of the lock or unlock relay, the doors and liftgate will then lock or unlock appropriately. Three relays are used to operate the lock. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked by itself using the keyless entry transmitter.

yes yes

You can't check the relay's (replace them ) The relay's are what they call PCB relay's - printed circuit board relay's . Soldered onto the circuit board inside the I/P fuse box. . If the fuse's are good the next thing to do would be to view a wiring diagram an test electrical circuits . I would assume you don't have a factory scan tool too check the switch inputs to the BCM . The lock relay's are controlled by the BCM , an you can view this data with a good scan tool . You can't check the relay's (replace them ) The relay's are what they call PCB relay's - printed circuit board relay's . Soldered onto the circuit board inside the I/P fuse box. . If the fuse's are good the next thing to do would be to view a wiring diagram an test electrical circuits . I would assume you don't have a factory scan tool too check the switch inputs to the BCM . The lock relay's are controlled by the BCM , an you can view this data with a good scan tool .

Well thats wrong. I just checked the relays in one of these the other day.. Well thats wrong. I just checked the relays in one of these the other day..

Not all of them . Not all of them .